Hi. I'm having a little trouble posting an array of objects to an Action. I have
container class that contains a few Vectors of other container classes, like so:
public class Harman
{
private Vector kardons;
// Omit getters and setters for brevity.
public Harman( )
{
kardons = new Vector();
}
}
public class Kardon
{
private String value;
// Omit getters and setters for brevity.
}
Then I created an Action class that contains a Harman object and I use
BeanUtil.setProperties() to populate the fields of the object, like so:
public class HarmanAction extends ActionSupport
{
private Harman harman;
// Omit getters and setters for brevity.
public HarmanAction( )
{
harman = new Harman();
}
public String doExecute( ) throws Exception
{
parameters = ActionContext.getSingleValueParameters();
BeanUtil.setProperties(parameters,harman);
return SUCCESS;
}
}
Now the problem is that I can't figure out how to populate the field value inside one
of the Kardon objects in the kardons Vector. The first thing I tried was having the
name in my <ui:textfield/> set to index into the Vector, like so:
... some HTML with a form ...
<ui:textfield name="'kardons[0]/value'" label="'unimportant'"/>
... some HTML with the form submit button, etc. ...
Now this spews the following when I try to submit the form:
Could not set parameter "kardons[0]/value":java.lang.IllegalArgumentException:
The target object for property 'kardons[0]/value'. The target object needs to be
initialized to a non-null value in order to set this property.
I tried omitting the index because that seemed to work when I had an array of Strings.
However, in this case, the value was just ignored and didn't populate the field. I
also tried changing the Vector to an array and also a List. Each time, I still got
the same error. So my question is, how can a post an array of objects?
Yoway Buorn
Software Engineer
Imagery Systems Engineering
GENERAL DYNAMICS
Advanced Information Systems
112 Lakeview Canyon Road
Thousand Oaks, CA 91362-5027
Tel 805 497 5074
Fax 805 497 5050
[EMAIL PROTECTED]
-=[ c o l l e c t i v e - b a s s - j u n e 2 0 ]=-
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